It is a Tomboy client for the Google Android mobile platform.
For those who didn't know, tomboy is the world's best note-taking application using a unique wiki-style approach and a userfriendly interface. The aim of this project is to bring the same goodness to the Android platform. The goal is to be file format compatible and be able to sync notes with tomboy. Of course, keeping a great UI adapted to the mobile context is also a goal of this project.